Key result
Training session duration primarily predicts heart-rate-derived TRIMP, substantially attenuating the link with session-RPE.
Why the study?
The study examined the role of session duration in relationships among internal training load indicators and the relationship between coach-planned and athlete-reported RPE in taekwondo.
Observational (n=13)
No
Effect estimate: β 1.065 (95% CI 0.957-1.173)
p-value: p=<0.001
Session duration is a primary driver of the relationship between perceptual and physiological internal training load indicators in taekwondo, highlighting its importance in load monitoring.
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Session duration largely explains session-RPE–TRIMP links in taekwondo; supports athlete- and coach-RPE use while leaving open duration-adjusted monitoring refinements.
Albuquerque et al. (2026) conducted an observational in Healthy (Taekwondo athletes) (n=13). Training session duration was evaluated on Heart-rate-derived training impulse (TRIMP) (β 1.065, 95% CI 0.957-1.173, p=<0.001). Training session duration was the primary predictor of heart-rate-derived training impulse (β 1.065), substantially attenuating the association between session-RPE and TRIMP when both were analyzed together.
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